diff --git a/vhook/imlib2.c b/vhook/imlib2.c
index 49a5bb2a10..e371f383b9 100644
--- a/vhook/imlib2.c
+++ b/vhook/imlib2.c
@@ -53,6 +53,7 @@
 #include <fcntl.h>
 #include <stdarg.h>
 #include <string.h>
+#include <strings.h>
 #include <unistd.h>
 #undef time
 #include <sys/time.h>